Use signed for pin_t

2018-02-10 15:30:29 -06:00
parent 2aafc5b7b0
commit baaf79b755
1 changed files with 1 additions and 1 deletions
--- a/Marlin/fastio.h
+++ b/Marlin/fastio.h
@@ -31,7 +31,7 @@

 #include <stdint.h>

-typedef uint8_t pin_t;
+typedef int8_t pin_t;

 #include <avr/io.h>